Rotary wrecking-pump



3 Sheets-Sheet 1 O. PALMER. ROTARY WREGKING PUMP.

No. 13,273. Patented'Ju1y 17, 1855.

8 Sheets-Sheet 2.

O. PALMER. ROTARY WRBOKING PUMP. v No. 13,273. Patented Ju1y1'7, 1855.

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3 Sheets-Sheet 3 0'. PALMER.

ROTARY WREQKING PUMP.

No. 13,273. Patented Ju1y1'7, 1855.

UNITED STATES PATENT OFFICE.

OLIVER PALMER, OF BUFFALO, NEW YORK.

ROTARY WRECKING-PUMP.

Specification of Letters Patent No. 13,273, dated July 17, 1855.

To all whom it may concern:

Be it known that I, OLIVER PALMER, of Buffalo, in the county of Erie andState of New York, have invented certain new and useful Improvements inRotary Pumps Intended Chiefly for WVrecking Purposes, which I havedescribed in the following specification and illustrated in theaccompanying drawings with sufficient clearness to enable others ofcompetent skill to make and use my invention.

My invention consists in, first, the combination of an angular arm orbucket so made as to press the water outward from the shaft, with aspiral partition in the suction pipe which gives the water an initiatoryrotation in the direction contrary to that in which the arms revolve;second, in combination with the horizontally angular arm and spiralplate, a curve in the vertical face of the bucket made in the mannerherein described, to induce the water to rise upon the bucket and moreeffectually hold .it upon it while it is within range of the circle ofthe arms.

In the accompanying drawings Figure 1 is a vertical projection of myimproved pump. Fig. 2 is a vertical projection showing in section theparts at the left hand side of the line ac m dotted across Figs. 3 and4. Fig. 3 is a plan of the pump. Fig. 4 is a plan of the interior withthe cover removed.

A is the shaft.

B B are the arms.

C is the chamber in which the arms re-.

volve.

E is the suction pipe.

D is the discharge pipe.

F, F, F, are brackets or standards which support the cap G which capsupports the top of the shaft. This cap has a couple of circular ledgesa and 1) upon it; and the disk surface between them is turned andfinished true and smooth. A collar H fits loosely upon the upper end ofthe shaft and is kept from turning independently of the shaft by afeather in the shaft which fits in like manner into a slot or key seatin the collar. This collar forms a bearing which supports the top of theshaft by resting upon the disk surface between a and b,- and this collarH is adjustable by means of the nut I.

The face of the arms present a horizontal angle of about 45 to a lineradiating from the center of the shaft, and this angle is constant forthe whole effective length of the arms, the angle being measured at thepoint "of intersection of the radial line with the face of the bucket orarm. A spiral plate L divides the space in the suction pipe. This platewinds in the direction opposite to that in which the arms revolve; thisgiving the water as'it enters the chamber C an initiatory rotary motionopposed to the rotation of the arms, the effect of which is to cause therotation of the arms to force the water outward more effectually than itwould otherwise do; much of the power being by the previousconstructions exhausted in producing unnecessary rotation of the water.

As an auxiliary means of raising the water from the suction pipe, and tohold it more effectually upon the bucket till it is carried beyond thesuction pipe, I curve the front face of the bucket in the manner shownin the drawings, which effectually accomplishes the purpose. A pump fourfeet in diameter should be run at the rate of from one hundred to onehundred and fifty revolutions per minute.

N is a hose to carry off the water. The length of the suction pipe maybe adjusted to any depth of hold by short additions as the case mayrequire.

M is a funnel for priming the pump. R is a valve seat for the suctionpipe.

The valve is a thick sheet of india rubber and is held in its place by abar bottled down upon the middle of it with three bolts.

I claim The combination of the vanes B, B, constructed in any equivalentmanner, with the spiral partition L.

OLIVER PALMER.

Witnesses:

HENRY J. WESTON, Jr., THos. P. How.

